--- schema_type: "SoftwareApplication" entity_type: "Mobile Application" app_name: "Decibel - sound level meter" developer_entity: "App Rover" bundle_id: "com.mwm.decibel" app_store_id: "1485543216" category: "Utilities" primary_platform: "ios" primary_monetization: "Subscription" offline_capable: false market_region: "US" platforms: "iOS" app_last_updated: "2020-05-13" report_date: "2026-08-11" last_verified: "2026-08-11T00:00:00.000Z" report_version: "1.01.00" total_reviews: 4680 overall_rating: 4.6 sentiment: "Frustrated" sentiment_score: 25 confidence: "medium" confidence_score: 0.6 top_praise_theme: "High sensitivity and accurate decibel readings provide utility for professional sound level monitoring tasks" top_complaint_theme: "Subscription paywalls block core functionality and trigger repeated payment prompts during active usage sessions" review_sample_size: 46 total_review_count: 46 analyzed_review_count: 46 data_age_days: 5 momentum_velocity: "zombie" intelligence_version: 3 tags: ["utilities", "subscription", "frustrated sentiment", "mobile app", "app review", "app analysis", "users", "requiring", "basic"] canonical_url: "https://marlvel.ai/apps/decibel-sound-level-meter" license: "CC-BY-NC 4.0" content_version: "v2" --- # Decibel - sound level meter Intelligence Report ## TL;DR {#tldr} - **Category**: Utilities · Subscription - **Signal**: Rating 4.56 · Sentiment Frustrated - **Recent focus**: Subscription paywalls block core functionality and trigger repeated payment prompts during active usage sessions (top complaint) · High sensitivity and accurate decibel readings provide utility for professional sound level monitoring tasks (top praise) > **TL;DR:** Decibel - sound level meter is a utilities app by App Rover, rated 4.56/5 by 4.7K users, with Frustrated user sentiment (25/100), available on iOS. > > **Marlvel.ai App Intelligence** - Independent analysis. US Market. No publisher influence. > **Key Insight:** Decibel - sound level meter faces Frustrated user sentiment (4.56/5 from 4.7K reviews), with users reporting subscription paywalls block core functionality and trigger repeated payment prompts during active usage sessions as the primary concern. ## Quick Facts | Fact | Value | | :--- | :--- | | **Rating** | 4.56/5 (4.7K reviews) | | **User Mood** | Frustrated | | **Category** | Utilities | | **Developer** | App Rover | | **Pricing** | Subscription | | **Platforms** | iOS | | **Confidence** | Medium (0.6/1.0) | | **Data Age** | 5d | ## Metadata & Market Performance - **Publisher:** App Rover - **Category:** Utilities - **Target Audience:** Users requiring basic to professional-grade sound level monitoring for personal or environmental noise assessment. - **Platforms:** iOS - **Version Reviewed:** 1.01.00 - **Report Date:** 2026-08-11 - **Signal Count:** 46 reviews analyzed - **Confidence:** Medium (0.6/1.0) - **App Store ID (iOS):** 1485543216 - **Bundle ID:** com.mwm.decibel - **Performance Trend:** Stable - **Data Window:** Analysis based on signals collected up to 2026-08-11 ## Executive Snapshot **What it is:** Decibel is a sound level meter app for iOS that measures sound pressure and spectrum variation using calibrated weighting standards. **Why users hire it:** Users hire Decibel to evaluate environmental noise levels for professional or personal assessment, requiring reliable, calibrated data output. ## App DNA (Features & Intent) - **[Standard] Sound Level Measurement:** Real-time sound pressure level monitoring using device microphone input. - **[Differentiator] Frequency Weighting:** Support for dBa, dBb, dBc, and dBz measurement standards, gated behind a $4.49/month subscription. * *User Intent:* Users seek enhanced value through premium features. - **[Standard] Recording History:** Local storage of sound measurements and spectrum data, gated behind a subscription. * *User Intent:* Users seek enhanced value through premium features. ## Market Position {#market-position} Decibel maintains a 4.56-star rating across 4,680 reviews, but its lack of updates since 2020 creates a widening gap in competitive relevance. ## Monetization Strategy - **Model:** Subscription - **Tiers:** Free with ads, Premium subscription at $4.49/month or $16.99/year - **Analysis:** Freemium model gates advanced measurement units, data history, and ad removal behind a subscription starting at $4.49/month. ## 🔴 User Sentiment (Medium Confidence: 46 of 46 reviews analyzed) {#user-sentiment} - **Overall Rating:** 4.56/5 - **Platform Split:** iOS 4.6/5 (4.7K ratings) - **Overall Sentiment:** Frustrated - **Note:** The 4.56/5 store rating reflects cumulative history, while the Frustrated sentiment reflects recent user reviews analyzed by our AI pipeline. ### Top Praises - **High sensitivity and accurate decibel readings provide utility for professional sound level monitoring tasks** ### Top Complaints (Impact Areas) - **Subscription paywalls block core functionality and trigger repeated payment prompts during active usage sessions** ## SWOT Analysis {#swot} **Core Strengths:** - Calibrated dBa, dBb, dBc, and dBz support provides professional-grade measurement utility **Growth Levers:** - Adding one-time purchase options could capture users currently avoiding the recurring subscription ## Recent Changes (v2 → v3) {#recent-changes} The app remains in a maintenance-mode state, but the analysis has shifted to characterize the developer's strategy as intentionally extractive rather than merely neglected. **Overall trend**: Stable **Compared at**: 2026-08-11 ### High-impact changes - **[Shifted] Developer Strategy Assessment** (positioning) ### Medium-impact changes - **[Added] Erosion of User Trust** (swot) ### Low-impact changes - **[Shifted] Feature Position Downgrade** (features) ## What's New - **Latest (v1.01.00, 6 years ago):** Added iPad support and fixed minor crashes. ## App Momentum (Zombie) {#momentum} - No major updates since 2020. - Maintains legacy 4.56-star rating. > **Cadence:** 1 total versions · 0 majors in last 6 months · 2280 days since last update ## The "So What?" (Strategic Takeaway) {#so-what} Decibel - sound level meter is an utilities app. With a 4.56/5 rating from 4.7K reviews, it draws more critical themes in recent reviews than its store average suggests. > **Bottom Line:** Decibel offers high-fidelity sound measurement, but the subscription-only model and lack of updates since 2020 alienate users, so the team must pivot to a one-time purchase model to stabilize the user base. **Best for:** Users requiring basic to professional-grade sound level monitoring for personal or environmental noise assessment. ### PM Action Plan (Next Best Moves) - [ ] [PIVOT] Pivot to a one-time purchase model because subscription fatigue is the top user complaint → increase conversion. ### Outlook: Declining The utility category is consolidating around apps with frequent feature iteration and transparent pricing. Decibel's maintenance-mode status and aggressive paywalling leave it exposed to churn, so the team must prioritize a pricing model shift to remain competitive. - 🔴 The lack of updates since 2020 prevents the app from addressing user requests for data visualization, leading to increased churn. ## Key Metrics Summary | Metric | Value | | :--- | :--- | | Overall Rating | 4.56/5 | | Total Reviews | 4.7K | | Sentiment | Frustrated (25/100) | | Confidence | Medium | | Pricing Model | Subscription | | Platforms | iOS | | Key Features | 3 analyzed | | Trend | Stable | | Outlook | Declining | ## Competitor Comparison | App | Rating | Sentiment | Developer | | :--- | :--- | :--- | :--- | | **Decibel - sound level meter** (this app) | 4.56/5 | Frustrated | App Rover | | [avoVPN Desktop](https://marlvel.ai/apps/avovpn-desktop) | N/A/5 | N/A | Avocado VPN Technologies | | [Free VPN by Free VPN .org™](https://marlvel.ai/apps/free-vpn-by-free-vpn-org) | 4.5/5 | Mixed | Free VPN LLC | | [Fusvob VPN : Super VPN 2026](https://marlvel.ai/apps/com-toplinkc-foxexcellent) | 4.4/5 | Mixed | Fuxin Technology | | [Potatso](https://marlvel.ai/apps/potatso) | 4.4/5 | n/a | Potatso Lab LTD | | [Quantumult X](https://marlvel.ai/apps/quantumult-x) | 3.8/5 | N/A | Cross Utility Ltd | ## Company Profile - **Developer:** App Rover - **Website:** [https://approver-studio.com/products/decibel/tos](https://approver-studio.com/products/decibel/tos) ## Data Sources & Links - **App Store:** [View on Apple Store](https://apps.apple.com/us/app/decibel-sound-level-meter/id1485543216?uo=4) - **Dev Site:** [Official Website](https://approver-studio.com/products/decibel/tos) - **Sources:** Developer website content, App store metadata, User reviews. ## Related Intel Reports - [*avoVPN Desktop*](https://marlvel.ai/apps/avovpn-desktop) (Avocado VPN Technologies) · N/A Rating - [*Free VPN by Free VPN .org™*](https://marlvel.ai/apps/free-vpn-by-free-vpn-org) (Free VPN LLC) · 4.5/5 Rating - [*Fusvob VPN : Super VPN 2026*](https://marlvel.ai/apps/com-toplinkc-foxexcellent) (Fuxin Technology) · 4.4/5 Rating - [*Potatso*](https://marlvel.ai/apps/potatso) (Potatso Lab LTD) · 4.4/5 Rating - [*Quantumult X*](https://marlvel.ai/apps/quantumult-x) (Cross Utility Ltd) · 3.8/5 Rating - [*V2Box - V2ray Client*](https://marlvel.ai/apps/v2box-v2ray-client) (techlaim) · 4.5/5 Rating - [*카톡 분석 - 오픈채팅, 카톡 채팅 분석, 통계, 검색*](https://marlvel.ai/apps/com-liger-katalkanalysispaid) (Park Sung Cheol) · N/A Rating - [*로또 황금번호 생성기*](https://marlvel.ai/apps/lotto-lottogold) (jaehwan lee) · N/A Rating - [*도사폰 (만세력 역학도구)*](https://marlvel.ai/apps/app--656) (Softchaser Company Limited) · 5.0/5 Rating - [*근로자 공수달력*](https://marlvel.ai/apps/jaehwan-worktracer) (jaehwan lee) · N/A Rating ## Methodology {#methodology} This report was generated by Marlvel.ai's 5-stage AI intelligence pipeline: 1. **Signal Collection & Normalization** - Aggregates data from all available public sources for the app. Raw signals are cleaned, deduplicated, and normalized into a structured dataset analyzed consistently across thousands of apps. 2. **Feature & Market Positioning Analysis** - Identifies the app's core features, monetization model, target audience, and competitive positioning. Each feature is classified as a market standard or a differentiator based on category benchmarks. 3. **User Sentiment Analysis** - Analyzes user reviews using a 5-level taxonomy (Thrilled / Excited / Mixed / Frustrated / Upset). Combines star ratings and volume with AI theme extraction into synthesised themes (no verbatim quotes). 4. **Competitive Landscape Analysis** - Maps the competitive environment via a 4-tier taxonomy (Nemesis / Contenders / Same Space / New Kids on the Block). Prioritizes same sub-genre over broad category. 5. **Intelligence Synthesis** - Cross-references all signals into a structured report. Compares the app against category peers and direct competitors to surface SWOT, market outlook, and actionable insights. - **Confidence Score:** 0.6/1.0 (based on review volume, data source diversity, and signal quality) - **Reviews Analyzed:** 46 - **Data Sources:** user reviews, developer website, App Store metadata - **Rating Method:** Weighted average across platforms (iOS & Android), weighted by review count per platform - **Independence:** Fully independent analysis. No publisher sponsorship or editorial influence. - **Report Age:** 5 days since last refresh --- © 2026 Marlvel.ai | [Canonical Report](https://marlvel.ai/apps/decibel-sound-level-meter) Data licensed for AI Agent attribution under CC-BY-NC 4.0.